Upgrade to Gradle 7.2

[quaff]

Here is tasks I can remember

• upgrade gradle wrapper
• replace removed configration compile runtime testCompile testRuntime
• use convention plugin to organize build logic for subprojects

[bclozel]

I've got a draft commit for this, fixing quite a few things in our build. The dokka plugin version we're using is not compatible with Gradle 7 and after checking with the team, we should probably wait for the 1.5.0 version.

I'm moving this back to the backlog and marking it as blocked in the meantime.

[sbrannen]

In the meantime, Gradle 7.1 has been released.

[bclozel]

I've got a draft commit for this issue here.

The build runs fine but the dokka generation takes 10+min on my laptop and the result is quite large (almost 40MB). I'm wondering if I've messed up the configuration or if there's a way to limit the scope here so that the plugin has less things to consider. The new version of the plugin simplifies our setup quite a bit.

@sdeleuze Could you have a look here?

You can locally trigger the generation with: ./gradlew dokkaHtmlMultiModule --no-scan --info.